Pandorea jasminoides
publication ID |
https://doi.org/ 10.5252/adansonia2023v45a12 |
DOI |
https://doi.org/10.5281/zenodo.8015294 |
persistent identifier |
https://treatment.plazi.org/id/039687DC-FFE5-911F-8E98-C157FBD0AB3F |
treatment provided by |
Felipe |
scientific name |
Pandorea jasminoides |
status |
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Pandorea jasminoides View in CoL View at ENA
Stratified phloem ( Fig. 19D View FIG ), marked by the alternation of fiber bands, interrupted only by the rays, with areas of sieve tubes and axial parenchyma ( Fig. 19D View FIG ). Conducting phloem composed of sieve tubes solitary or in multiple of 2-3 ( Fig.19E View FIG ), intermingled by axial parenchyma cells ( Fig. 19E View FIG ). Sieve plates varying from almost transverse end walls and simple sieve plates, to inclined with 4-5 sieve areas. One companion cell lying on the corner of the sieve tube ( Fig. 19E View FIG ) or two companion cells, each on opposite sides of the sieve tube ( Fig. 19E View FIG ). Companion cells in strands of 2-4 cells. Axial parenchyma diffuse ( Fig. 19D, E View FIG ), abundant, in strands of four cells. Course of rays straight ( Fig. 19D View FIG ). Rays bi- to triseriate, heterocellular mixed, with procumbent, square and upright cells intermixed across the entire ray. Rays taller than 1 mm, as seen in tangential section. Rays slightly dilated in the outermost portions of the nonconducting phloem. Rays do not sclerify, not even when touching the fiber bands ( Fig. 19D, E View FIG ). Sclerenchyma composed of fibers, polygonal to rectangular in shape ( Fig. 19D, E View FIG ). Fibers in tangential bands of 2-3 cells, interrupted by the rays ( Fig. 19D, E View FIG ). Non-storied. Nonconducting phloem marked by empty sieve elements and companion cells, collapsed. Cell expansion common, dilatation of rays, no further sclerification seen. Pericyclic fibers forming a ring of discrete strands before a remaining cortex. Single periderm, phellem non-stratified, with evenly thin-walled cells, phelloderm non-stratified, thick, with three or more cell layers ( Fig. 19F View FIG ).
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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